Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Lykhoyda/rn-dev-agent/plugin install rn-dev-agentWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/lykhoyda/rn-dev-agent/setup)<a href="https://agentmods.dev/commands/lykhoyda/rn-dev-agent/setup"><img src="https://agentmods.dev/badge/commands/lykhoyda/rn-dev-agent/setup/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/lykhoyda/rn-dev-agent/setup"><img src="https://agentmods.dev/badge/commands/lykhoyda/rn-dev-agent/setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00041 | $0.06181 |
| Opus 5.5 | $0.00016 | $0.02472 |
| Sonnet 5.5 | $0.00008 | $0.01236 |
| Haiku 4.5 | $0.00004 | $0.00618 |
Grade A, and why
setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 231 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Run the rn-dev-agent onboarding flow. Two phases: diagnose what's installed, then inject the project-side wiring the plugin needs. Most users don't read the README — this command does the wiring for them.
Phase 1 — Diagnose
Invoke the rn-setup skill (same as /rn-dev-agent:doctor). Walk every prerequisite check, starting at check 0, and present the table.
Abort thresholds. Only the rows that block ALL plugin functionality count as critical for onboarding:
- CRITICAL (abort if any fail): source declaration for a non-Git app root (check 0 — name missing
RN_DEV_AGENT_DECLARED_ROOTorRN_DEV_AGENT_DECLARED_MANIFESTSdeclarations and point to the session-authority contract before aborting injection or build), Node.js version, CDP bridge dependencies. Platform-specific device-control row:rn-fast-runnerbuild artifacts on macOS targeting iOS, ORrn-android-runnerbuild/install when targeting Android. Both runners ship in-tree — there is no external CLI to install; they build/install on first use. iOS-only users don't needrn-android-runner; Android-only users don't needrn-fast-runner. Without the relevant device-control row green, the plugin can't drive the simulator/emulator. Show the one-time pre-build commands (if any) and ask the user to run them, then re-run/rn-dev-agent:setup. - DEFERRED (warn but continue): Metro dev server, iOS/Android simulator/emulator, CDP connection. A clean-clone user running
/setupimmediately aftergit clonetypically hasn't started Metro or booted a simulator yet — that's a normal onboarding state, not a failure. The CLAUDE.md / nav-ref / Zustand / scaffold injection steps don't need Metro running. Phase 2 Step E verification (cdp_status) WILL skip with a note if Metro+simulator aren't up; the user can come back to it later. - OPTIONAL (note, continue): ffmpeg, physical-device prerequisites when no devices connected, the off-platform device row (e.g.
rn-android-runneron an iOS-only macOS setup → N/A).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed 129c94bb6688
- 1mo ago Changed 6feb084ef96c
- 1mo ago First seen · 231 lines · 41 tokens per session scan A 41229e5ae89d
setup is a command published in the GitHub repository Lykhoyda/rn-dev-agent (20 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 6,181 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
dashboard-list-models
List reachable models from the dashboard registry. Usage /dashboard:list-models [annotated].
dashboard-server-tunnel-off
Disconnect the public tunnel. Usage /dashboard:server-tunnel-off.
dashboard-session-abort-all
Abort multiple running sessions (asks which). Usage /dashboard:session-abort-all.
dashboard-session-diff
Show file changes (git diff) for a session by id-prefix. Usage /dashboard:session-diff . Runs locally, no LLM.
dashboard-flow-auto
Toggle autonomous mode for a session's flow. Usage /dashboard:flow-auto.
dashboard-session-hide
Hide a session from the dashboard list. Usage /dashboard:session-hide.